GB656286A - Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose - Google Patents
Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscoseInfo
- Publication number
- GB656286A GB656286A GB26677/48A GB2667748A GB656286A GB 656286 A GB656286 A GB 656286A GB 26677/48 A GB26677/48 A GB 26677/48A GB 2667748 A GB2667748 A GB 2667748A GB 656286 A GB656286 A GB 656286A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- viscose
- fibres
- yarns
- bath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Regenerated cellulose fibres and yarns are obtained by extruding a normal viscose composition, to which there has been added 1-5 per cent of an organic water-soluble material consisting essentially of urea, into an aqueous acid coagulating and regenerating bath. Normal viscose is stated to be one having a sodium hydroxide content of 6-8 per cent, based on the weight of the viscose, a cellulose content of 6-8 per cent, and a salt point of 3-6. The fibres and yarns produced have high breaking toughness and low average stiffness (ratio of the tensile strength at break to the elongation at break). The urea may be added immediately after the production of the viscose, or during ripening, or immediately before spinning. The spinning bath may contain 8-12 per cent of sulphuric acid, 2-5 per cent of zinc sulphate, and 16-20 per cent of sodium sulphate, and the temperature of the bath may be 45-55 DEG C. In an example, 2.5 per cent of urea is added to viscose having a salt point of 3, and the solution is then spun into a bath containing sulphuric acid and zinc and sodium sulphates. The yarn obtained is stretched by 75 per cent. In other examples, the viscose has a salt point of 5.1-5.9. The fibres and yarns obtained may have tensile strength of 2.7-3 grams per denier and elongation of 17-23 per cent. They may be used in making tyre cords.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US656286XA | 1947-11-19 | 1947-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB656286A true GB656286A (en) | 1951-08-15 |
Family
ID=22064032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26677/48A Expired GB656286A (en) | 1947-11-19 | 1948-10-13 | Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB656286A (en) |
-
1948
- 1948-10-13 GB GB26677/48A patent/GB656286A/en not_active Expired
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